2021-01-21: migration time out - 20210115084949_add_repository_read_only_to_groups
Summary
A migration failed in our release process, blocking the release pipeline. We decided to roll it back and improve it - to attempt it some other time: #3390 (comment 490527412)
Timeline
All times UTC.
2021-01-21
-
09:04
- @nolith declares incident in Slack.
Corrective Actions
- https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/12418
- Revert migration: gitlab-org/gitlab!52181 (merged)
Incident Review
Summary
- Service(s) affected:
- Team attribution:
- Time to detection:
- Minutes downtime or degradation:
Metrics
Customer Impact
-
Who was impacted by this incident? (i.e. external customers, internal customers)
- ...
-
What was the customer experience during the incident? (i.e. preventing them from doing X, incorrect display of Y, ...)
- ...
-
How many customers were affected?
- ...
-
If a precise customer impact number is unknown, what is the estimated impact (number and ratio of failed requests, amount of traffic drop, ...)?
- ...
What were the root causes?
Incident Response Analysis
-
How was the incident detected?
- ...
-
How could detection time be improved?
- ...
-
How was the root cause diagnosed?
- ...
-
How could time to diagnosis be improved?
- ...
-
How did we reach the point where we knew how to mitigate the impact?
- ...
-
How could time to mitigation be improved?
- ...
-
What went well?
- ...
Post Incident Analysis
-
Did we have other events in the past with the same root cause?
- ...
-
Do we have existing backlog items that would've prevented or greatly reduced the impact of this incident?
- ...
-
Was this incident triggered by a change (deployment of code or change to infrastructure)? If yes, link the issue.
- ...
Lessons Learned
Guidelines
Resources
- If the Situation Zoom room was utilised, recording will be automatically uploaded to Incident room Google Drive folder (private)
Incident Review Stakeholders
Edited by Brent Newton